Harry T Port Orange , FL November 22, 2016 Appliance: Model WHIRLPOOL SHU30041 The dishwasher would not empty the water inspection of the check valve showed it to be frozen shut I ordered a new check valve from Appliance parts received it in two days and took 15 minutes to install.it. We are back in operation - Thank you for your fast response. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes